
(a)
Interpretation:
To write the formula of the compound mercuric chloride.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound mercuric chloride is HgCl2.
Explanation of Solution
The mercuric chloride is named as HgCl2. The Hg is has + 2 charge and Cl has -1 charge.When one Hg and two Cl is combine together to form HgCl2.
(b)
Interpretation:
To write the formula of the compound iron(III)oxide.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound iron(III)oxide is Fe2 O3.
Explanation of Solution
The iron(III)oxide is named as Fe2 O3. The Fe is has + 3 charge and O has -2 charge.When two Fe and three O is combine together to form Fe2 O3.
(c)
Interpretation:
To write the formula of the compound sulfurous acid.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound sulfurous acid is H2 SO3.
Explanation of Solution
The sulfurous acid is named as H2 SO3. The H+ is has + 1 charge and SO3 2 - has -2 charge. When two H and one SO3 2 - is combine together to form H2 SO3.
(d)
Interpretation:
To write the formula of the compound calcium hydride.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound mercuric chloride is CaH2.
Explanation of Solution
The calcium hydride is named as CaH2. The Ca is has + 2 charge and H has -1 charge.When one Hg and two His combine together to form CaH2.
(e)
Interpretation:
To write the formula of the compound potassium nitrate.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound mercuric chloride is KNO3.
Explanation of Solution
The potassium nitrate is named as KNO3. The K is has + 1 charge and NO3 has -1 charge.When one K and one NO3 is combine together to form KNO3.
(f)
Interpretation:
To write the formula of the compound aluminum fluoride.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound aluminum fluoride is AlF3.
Explanation of Solution
The Aluminum fluoride is named as AlF3. The Al is has + 3 charge and F has -1 charge. When one Al and three F is combine together to form AlF3.
(g)
Interpretation:
To write the formula of the compound dinitrogen monoxide.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound dinitrogen monoxide is N2 O.
Explanation of Solution
The dinitrogen monoxide is named as N2 O. The N is has + 1 charge and O has -2 charge. When two N and one O is combine together to form N2 O.
(h)
Interpretation:
To write the formula of the compound sulfuric acid.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound sulfuric acid is H2 SO4.
Explanation of Solution
The sulfuric acid is named as H2 SO4. The H is has + 1 charge and SO4 has -2 charge. When two H and one SO4 is combine together to form H2 SO4.
(i)
Interpretation:
To write the formula of the compound potassium nitride.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound potassium nitride is K3 N.
Explanation of Solution
The potassium nitride is named as K3 N. The K is has + 1 charge and N has -3 charge. When three K and one N is combine together to form K3 N.
(j)
Interpretation:
To write the formula of the compound nitrogen dioxide.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound nitrogen oxide is NO2.
Explanation of Solution
The nitrogen dioxide is named as NO2. The N is has + 2 charge and O has -1 charge. When one N and two O is combine together to form NO2.
(k)
Interpretation:
To write the formula of the compound silver acetate.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound silver acetate is CH3 COOAg.
Explanation of Solution
The silver acetate is named as CH3 COOAg. The Ag is has + 1 charge and CH3 COO has -1 charge. When one Ag and one CH3 COO is combine together to form CH3 COOAg.
(l)
Interpretation:
To write the formula of the compound Acetic acid.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound acetic acid is CH3 COOH.
Explanation of Solution
The acetic acid is named as CH3 COOH. The H is has + 1 charge and CH3 COO has -1 charge. When one H and one CH3 COO is combine together to form CH3 COOH.
(m)
Interpretation:
To write the formula of the compound platinum chloride.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound platinum chloride is PtCl4.
Explanation of Solution
The platinum chloride is named as PtCl4. The Pt is has + 4 charge and Cl has -1 charge. When one Pt and 4 Cl is combine together to form PtCl4.
(n)
Interpretation:
To write the formula of the compound ammonium sulfide.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound ammonium sulfide is (NH4 )2 S.
Explanation of Solution
The ammonium sulfide is named as (NH4 )2 S. The NH4 + is has + 1 charge and S has -2 charge. When two NH4 and one S is combine together to form (NH4 )2 S.
(O)
Interpretation:
To write the formula of the compound cobalt bromide.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.
(O)

Answer to Problem 31CR
The formula of a compound cobalt bromide is CoBr3.
Explanation of Solution
The cobalt bromide is named as CoBr3. The Co is has + 3 charge and Br has -1 charge. When one Co and two Br is combine together to form CoBr3.
(p)
Interpretation:
To write the formula of the compound hydrofluoric acid.
Concept Introduction:
The compound is named as the form of cation and anion. The cation is named firstly and then anion named. The cation named as it is given in the periodic table and anion is named as ate, ite and ide. Like Mercuric chloride: HgCl2. The Hg is the mercury and Cl is the nonmetal.
Hg is named as mercury and suffix -ide is added to the name of chlorine.

Answer to Problem 31CR
The formula of a compound hydrofluoric acid is HF.
Explanation of Solution
The Hydrofluoric acid is named as HF. The H is has + 1 charge and F has -1charge. When one H and one F is combine together to form HF.
Hence, all parts have been discussed.
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Chapter 5 Solutions
Introductory Chemistry: A Foundation
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